Machine for tipping shoe laces



Feb. 20, 1923,

S. NRDEN. MACHINE Foa UPPING SHOE LAc'Es.

3 SHEET SHEET l.

FILED NOV; 29,1920- FGb. 20, 1923.

S. NORDEN.

MACHINE Foa TIPPING SHOE LACES.

s SHEETS-SHEET 2.

HLED NOV; 29,192Q.

Feb. 2o, 1923. 1,446,059.v

` s. NORDEN.

MACHINE FUR TIFPING SHOE LACES.

FILED Nov, 29, 1920. 3 sHEEs-SHEET 3.

`Patented Feb. 20, 1923.

' entre stares Partnr orricjfEg svAN NOEDEN, OE 'ORANSTON'EIIODE IsLaND, .assIGNoE "11o s." NOEDEN a" coivIri/INY,

OE PROVIDENCE, RHODE ISLAND, nv PAEINEEsIIIrfoONsIsfrINeoEsv'aN NOEDEN, i

OE oEANsTON, RHODE ISLAND, AND" HERMAN-s. EIOII, OE PROVIDENCE, EI'IODETT ISLAND.

MACHINE EOE' EIPEING' SHOE Leens;v

Application led November 29, 1920. Serial No. 426,235. i

T o all 'whom t may concern.'

Be it known that I., SVAN NORDEN, citi-- zen of the United States, residing at Crans-f ton, in the county of Providence', State ot Rhode Island, have invented certain` new and useful Improvements in Machines for Tipping Shoe Laces, Vof which thefollowing* is a specification.

My Invention relates to improvements in tipping-machines forL applying metal tips to shoe-laces, corset-laces or the like.

@ne object of the invention islto provide a machine ytor rolling or bending a-,metal blank around the lace and forcing itsofverlappingedges together to grip the fabric to secure it thereto.

Another object of the invention' tis to provide automaticallyfoperating means forv by to divide it into separa-te tips for the ends oi individual laces.

Further objects of the 'invention are 'to simplify the structure of the machine; to`

render it easy and convenient to operate; and to increase its productive capacity while also providing for improvement in the quality and appearance ot its producty y The manner and means for carrying out these improvementsr are fully' set forth in the following specification which describes a preferred embodiment Ot the invention as illustrated in the accompanying drawings. In the drawings Fig. l is aside elevation ot a tippingmachine embodyingthe invention; Y. l

Fig. 2, a detail view in reduced scale ot the operating lever of the machine;

Fig. 3, a plan view of the main Operating parts of the machine showing the tip-tormingl dies in Open position; y n

Fig. Ll, a similar view showing the dies in close-il relation;l l

Fig. 5,. a sectional view through the dies taken on thc line 55 ot Fig. 3, looking in the direction indica-ted by the arrows;

Fi G, an enlarged side elevation in detail ofthe workingparts of the dies shqweration;

fingrthe lace-positioning meansin relation,v

thereto at the. startotthe tip-formingv op.r55"

- a 'similar-view showing-'the dies "inil ,p position atv the completion of the yforming operationv and 'illustrating Athey lace-.holding means released; v

Fig. 8, a perspectiveview ofdtheiblanki:

trom which' the tips are formed; andl l tip' afiixed ytothe lace.

My present improved tippingfinac-hinewis similar in some respects to that. shown andy` described in. myprior Il. S, Letters Patent n No. 1,348,660, dated August 3, 1920, but `has certain important features of distinction as next explained; AThe machine of the earlier Fie.' 9, a perspective view of the finished'.y u'

patent is designed to torni and'aiiix a singleg-,

tip to theend ot thelacefat each operation; whereas, inthe present inventionthe: new

machine operates ,to form twoconnec'tedtips ,A

froml a single blankand to then sever the formed `blank midway ort -its ends `to divide it into .two separate tips. .In the machine of the patent a single` set 'of dies operates fp on the opposite edges: ot' thexblankto roll it),l

around the-lace`A whilein the present Ina-` chine I emplovtwoysets of parallel dies op;

erat-i'ng initially in synchrony'on the blank, i

while one ot thesets is alsofadapted vto slide separate tips. dies are arranged in' pairs, and ,afterl all tip one set otdies moves l past the otherI to cut the tip` in two. Y v

through which are inserted screws 5 `for fastening itA in place. The 'base 21s of past the other set to eii'ect aj shearing actionl .i

onv the formed blank todivide itinto two Stated briefly, the opposite l.

ci the several. dies have been siiiiultaneouslv'. brought into actionto form a double-length4 wedge-shape in side elevation with'its up^ per inclined face adapted to support the dies whichfoperate `to 'tormfaud aitlx the metal tips to the laces. At its apex end'the base 2 is provided with an upstanding abutment or block''wliichis cutaway at to tor-inwl an inclined, recessed-seat 8l for oneot' the I fixed dies C, The'` die C ,is 'fastened down` to the seat S by means ot' 'aboltlOwith its ios . intacta place in the guidefway 14 by means of a flat panion die C. rlhe die C is secured cover-plate 16 secured to the upstanding sides 17 of the guideway 14 by screws 15. lt will be noted from Fig. 3 that the slide 15 is somewhat narrower than the slide 12 and beneath it is a third slide or bar 20, which, for convenience of description7 l shall term the cutting-off slide. Referring to Figs. 1 and 4, the cutting-oftl slide 20 is held in a slot or guideway21 extending the length of the upper inclined face of the base 2. The slot 21 is cut deeper into the rearward part of the base 2 than the guideway 14 and it will be seen from Fig. S that the slide 2O is of greater width than that of the overlying slide 15 so that 'both the slide 12 and the slide 15 rest upon its upper face.

At the lower end of the cutting-od1 slide 20 is an upstanding bloclr or abutment 22 similar in form to the abutment 6 on the forward end of the base 2. lThe abutment 22 is provided with a recessed seat 23 for the normally fixed die C which is arranged opposite vto and in alinement with its comto its seat 23 by means of a bolt 19 and is arranged with its rearward end abutting a shoulder 24 on the abutment 22 to take the thrust against its forward working face. At the opposite end of the bar or slide 20, see Fig. 1, is a depending lug or abutment 25 overhanging the rearward end of the base 2. 'A stud is screwed through the lug 25 with its end adapted to strike against the rear wall of the base 2 to limit the extent of forward movement of the slide 20 in the direction indicated by the arrow m, Fig. 1. The stud 26 is adjustable to regulate the stroke of the slide 20 and is provided with a checknut 27 for locking it in position. Surrounding the forward end of the stud 26 is a coil spring 28 which is held under compression between the lug 25 on the slide 2O and a pocket 29 in the base 2. rlhe spring 2S tends to hold the slide 2O in. retracted position, a stop-shoulder 30 on the side. of the slide, see Fig. 3, being adapted to engage with an opposite shoulder 31 on the base 2 whereby the slide is normally maintained inthe position' here shown with the fixed die C at its end in exact register with the opposite or companion die C. Referring to Figs. 3, 4

and 5, the cutting-ott' slide 20 abuts the side of the block or abutment 6 on the forward end of the base 2 and is held thereagainst by a cleat 32 fastened to the side of the base by screws rlhe cleat 32 is formed with a` key or feather 34 extendingI along its upper edge and fitted to a groove or spline 35 in the side of the slide. ln this manner the forward end of the slide 20 is braced and guided in its movement to prevent it from lifting away from the base 2 on which it slides.

The cooperating dies D, D and C,y C which act to roll the tip-blank around the lace are substantially the same in form as those described in my prior patent before referred to. Furthermore, the two iiXed dies C, C are identical in form, and both movable dies B, D are of tne same structure and arrangement so that it will only be necessary to describe briefly one set of dies. Referring particularly to Figs. 1 and 3, the fixed die C takes the form of a substantially flat rectangular plate which is cut away on its under side at 36 to form the forwardlyprojecting overhanging extension 38. The

forward end of the projecting portion 38 is beveled rearwardly on its under side at 39 with the bevel terminating in a semicircular recess 40 correspond.- ing to the cylindrical shape of the tip to be formed. The concaved recess 40 thus forms the working-face of the .die C, its lower sharp edge serving as a prow to slide in under the edge of the blank to initiate the bending or rolling action thereof. Cut into thel top of the overhanging portion 135:' of the die C are a plurality of slots 41 formed with inclined bottoms 42, see Figs. (3 and 7, which serve as wedges for a purpose as later explained. Ast shown in Figs. 3 and 4, the two companion dies C and C are arranged in closely adjacent relation with their working faces in alinement` later-v ally of the base 2.

Referring particularly toFig. 1, the movable die l) comprises two superimposed niembers 44 and 45 which are clamped to the forward end of the slide 12 by means of an overlying plate 46. The base-plate 44, which forms the rest for the blank, is set into a recessed seat 47 at the forward end of the slide 12 with its rearward end abutting a shoulder 48. rlhe forward end of the plate or rest 44 projects beyond the slide 12 and is reduced in thickness to adapt it to slide in under the overhanging portion 38 of the lined die C. Resting on the top of the plate 44 is the main die-member 45 which is formed with a rearwardly-beveled upper complementa-l to the semicircular recess 40 130 y inthe dieC. The lower edge51 of the face 50 overhangs a curved shoulder `or ledge'` 52 r`extending transversely of the base-plate 44 whereby to serve'as an abutment to overlie the edge ofthe blank vB, see Fig. 6, when the v main die-element 45'is in its forward'position as here shown. The element 45 is slidable on the plate 44 towithdrawn its edge 51 yfrom this position whereby, when the die D comes into cooperation with the die C,

' the several faces 5,0, 52 land 40.will lbe combined to form a complete circle as shown Vin 'Fien 7 f y.

Referring now to Fig. 4, the d1e-member is cut through with a rectangular opening at its center to provide two opposite parallel legs 5 5 which straddle the sides of a raisedv block or abutment 56 on the top of the baseplate 44. The forward edge of the block 56 abuts the end of the opening in the member 45 to limitthe rearward sliding movement of the latterwhereby to servo as a stop when the working faces and 52 are brought intoj register. The member 45 is slid forward on the plate 44y by its contact with the edge of the cover-plate 16'under the action of the rearward motion of the supporting slide 12.

That is to say, asthe slide 12 moves backv secured to its support or slide 12 by means. of a bolt 59 passing down through the block 56 onthe base-plate 44, see Figs. 3 and 4. The top-plate 46 projects beyond the forward endof the die-member 45 and is slotted to receive a pair of narrow fingers or levers 60. rPhe levers 60 are pivoted within the slots on a cross-pin 61 driven through the side of the plate, see F ig. 1. The levers lare formed with arms 62 resting on the top of the plate 46 and normally held there-` against by the legs 63 of "a wire spri11g 64;'

The spring 64 formed wth'ln. central loop fastenedto the top of the plate 46 by a screw From the central loop' thewire extendsv in two opposite coils 67 which continue intheV legsv 63, the latter beingbent atright angles at their outer ends to overliethe edges of the levers 60. At the outer vends of the levers 60 are ngersGS which project downwardly into proximity with the top of `the blank-rest 44; The fingers 68 are adapt- .ed to'engage the edge of the lace L placed on top` of the blank B. andl serve to push f the lace ,over into position to be rolled into the tipysee 6.` the-dies'j'Dvand C 4closey together the lingers 68 slide into the inl p clined slots41 'of'thediez'C to rock-ftheleversv` out ofthe way, as shownin Fig( 7 .1" p

yThe reciprocating s'liles." 12 and 15 carated;from a rockable llever .70 whichgas shown in lligpl, isfpivoted on a' rod or `shaft 71 extending ,through the.' sidesof the i. f

base 2.and heldf'in place .by vCotter-pins 72".y

'The lever 70 maybe connected to befoscill` 7o... .rying-the v'movable ldiesl `D and yC :are vacti.

lated from suitable power-driven means if desired or, in accordance with the usual method, is operated manually.l For this pur-l pose a foot-rest or treadle comprising so i cross-bar or rod"73'- projects froinits sides at the .lowerend as `shown in the detail viewg.

Fig. 2. The upper endof the lever` 70 is of" inverted hammer-shape terminating yin anv enlargement 74 whichl is rounded olfl on the,`

sides, seelFig. pivoted von the' shaft 71 at the side of the lever is an auxiliary lever f 75hhaving its' upper end'76 shaped to the same contour and adapted to be heldin alinement therewith. ,Thev auxiliary` 'leverl 75 has its lower arm extending forwardly at.'v

`an angle tothe main `lever'70 and neark its end is a pin 77 engaginga slot 78 in a projecting cross-piece 79. Thecrosspiece-79; y is riveted4 or otherwise fastened'tofthel sidevl of thelever70 and its slot 78 servesfas. a

guide and stop to control they rocking move" ment of the lever 7 5 with respect to the lever 70. A; vcoil-spring"8O of he'avywireisattache'dat` one end-.to a pin 81 at the lower 10o l end of the lever 75 and is anchoredv` aty its t opposite e'nd 'to a piny82 on the side of they*y lever 70. The springSOlacts to hold the auXiliarylever7 5 inthe position illustrated i Vin Fig. 2 lwith its upper'end orhead'76in` lregister with the head 74 ofthe `lever-70. i'

Referring now to Figs. 1` and B, the hammerg-like ends of yboth levers70 and 75 Vprovject upwardly within the wallsof the kbase 2 with their enlarged heads 74 and 76 engagmg respectively withxthe "ends ofttwo' `opposite'slots784"and S6 cut into the adja-y cent sides of the slides 15 .and-,12. Vr'Che head l,

7011 the main lever 70 isthus engaged with `the slide 15 to slide the latter from the' rock ing motion of thev lever; ,while the' head 76 yofthe anXiliary lever y75 likewise acts on y the slide 12 when bothlevers move together.y

It will. be noted from lP `1 that vthe lower y cutting-off vslide 2 0 is out v,away on its 'side at 88 to provideclearance for'bothof `the levers 70 and 75 so that neither-f0f `them engages with it. rThe t coaction ofthcse parts will be .furtherv described in connecT tion with the operation of' the complete-ina`r chine as next explained. p I f leferring'to Figs. land ltlthese ready to vreceive the. blank B 'from which Athe tip ris to be .formedf Fig,v` S`sl 1ows"ftlie y views y y y Alllustrrte the machine with the dies open' d 7 Atheir throw,

initial movement o' blank B as consisting in s substantially fist strip of sheet-metal hsvine its edges lient or curled univa-rally to' form the upstending marginal ribs or ilveiles 'lt end I ist either the blank Bs punched with e series ot peroru-ions forming sharp-edged projections or prongs on its upper lace adapted to bite into the Jisbrie o; the luce to @ri its end to prevent the tip fron; pulli g on.

llllith the parts of the machine in the position i l the operator illustrated in l places the tip-blank B on the rest or beseplete and legis tl e lacing` strip L across it. It will be noted that with slides l2 and l5 retracted to the reerwei'd linut of es shown in l, the dieineinber will be ensuite/d' the lin en the cover-flete so that its iii i lower edge 5lis projectel beyond thehdge 52 on rlhe og-ers'or glaces li coot i s 'l -ie operati lever the rest del. on the erosserrn 73 oit ZO and pushes the lever basl; 'to oci; its upper end ifi-s 71- el the lever is inoved its iliery lever is eurriel t" i to its connection therewith by the s ri 80. The heads '-l and 76 o'j the levers l0 d thus st the ends of l5 end l2 caused to ect in unison the slots S; and 86 inthe to `push the slides 'forward in the direction ifidiczedv by the AArrow a9, llig. l. The two slides l2 und l5 nieve lo'fivsrd together carrying the dies D, D :vitn them und the ends et the ediscent plates il on Wh ch the blank B rests will be slid in under 'the ford iecting ends o the fined dies C, C. The the dies D., D will curry r the blank BA forward until its dge coines against the Worn no; 'laces the con- 1 Ww .s ne ieuiweid e fined dies C', C', end is the dies D, l

L nvr the ledge or s ioulder 52 on the rests with the overhe ortion 5l the nienibers overluepn its nj Fig. G. lluring this forward ie dies l), l the levers 6() will r'e f. o the edge of the ble B, and enenL i fi the side ot the lucel L will 'push the lutter bodily towerd the dies C, C. il ou'1 tinued still tuitiei their pressure on the the dies l), D con- 'the more Y et the blsnlr will canse the completely into the Working; 'liuc-es l0 and 50 and its edges K hence eeeli blenl: it is rolled l@round the lacing lorins twoconnected tips. lo pio Vide the two separate tios the 'forward blank be cut spurt und the operef the Aluuk et its center is is Mgt explained: is the dies are brought into register with und C the die l) Will be predies C .dal 11. 1 4: $1 Q n, Y b ntsc lioin lunl el nioveinent y ie en ugeinent ot the lorwurd end oi the pletev t with the end ol the undercut oor-l Thst is to say, last on the bese 2 serves es oi' the lined die C. C bein u stop to linihu the inoveinent oi the die D. te regards the opposite `die C, however,

D 210 und consequently iney be caused to inove therewith after the die D cornes @gems it nus betere been explained that the slide (l held in retracted -position by the springcj against the end Wall of the base 2.

st it exerts sullicient pressure on the slide 2O to resist the lirst thrust ci the die l the die C. That is to say, the spring 5 uf slide 20 With the die C in aline ment u. its companion die C until the dies l), D have completed the forming of the hlsnlr es shown in 7. A'liter the bl le has been clenched ziround the lacing, hcw. ever, the continued pressure of the operstel-7s Yloot on the leverO will cause the lstl'er to slide tne slide l5 to ino-Ve the die l beyond the die D. rl`his action is' actually eilected et one continuous stroke el the lever 70, its lirst lnovenient bringing` the dies together, vwhile ut the end ot its stroke the slide l5 is inoved still further to slide the :es and C past the dies l) und C. lt will be noted troni Finis. 3 and l thntthe ide l5 for the die D is operated Yfrom the heed r the lever TO; while the slide l2 ifhich ce.

Lies the die D is operated .from the heed 7G ott the auxiliary lever 75. rllhe lever 75 is onersted lroni the ninin lever Z0 through its connection tl'ierewith by the spring SO and hence as the slide l2 cornes to rest with the die D against the iQiXed die C the lever T0 Ae-llo'fved to ,in Yepest the lever '75 to continue the inotion ot the slide l5.

is the inoveinent of the slide 15 is continued indicated by the dotted lines in Fing. dies ll and C slide nest the dies D and C and their adjacent Ylaces actin the D @his is mounted on the lower end ot the slide Y is constructed of heavy wire l manner of shears tosever the formed blank at its `center "to divide it into two separate tips.` the/metal strip is thus out in two the sharp edges ,of its severed portions act to shear the Afabric lace at the saine pointu,

. Stated brieiiy, the 'rolled over blank is severed in twain andthe lace slieared off flush with the ends of the completed tips thus formed.

It has been explained that the shearingij;

stroke of the die D is provided for by the movement of the slide2() yagainst the tension of the spring` 28 and the extent of this ino- -tion is limited by the engagement of the die C will be brought into alinement with-4 its companion die C. The further returnof the lever causes its head 74 to come into alineinent with thel head 76 on the auxiliaryy lever 75, see Fig. 2, and as the pin 77 on the y lever 7 5 reaches the endof the slot 7 8 in the eross-piece 79 both levers will be carriedback together to return the-slides 12 and 15'` to first position. As the slides 12;and 15 are thus retracted to withdraw the dies D and? D from the dies C, C the completed tipsv are relased therefrom and may be removed from the machine. As the slides 12 and 15 reach the end of their rearward stroke the edge of the die-member 45 strikes against.

the fin 57 on the Xed cover-plate 16, see Fig. 1, to project the member forward to overhang the shoulder 52 to set it in operative position to receive al new blank placed upon the rest 44. As, the dies D, D move back from the dies C, CV the .lacefholdinglevers 60 ride out from the slots- 41 and `are returned to operative position as shown in Fig. 1. In this way the rearward stroke of the lever 7 0` returns all of the parts tov operative position' for actingr on afresh blank l applied to the machine.

It will be seen that the machine is entirely automatic in action and may bek operatedcontinuously to produce the linished tips at a fast rate. Furthermore, the machine forms f and aliiXes two complete tips at each operation, thus doubling,` the production of the ordinary type of machine.l The duplex form of. blank also tends to produce a better formed and more symmetrical tip with greater uniformity in the product. The strip of lacing is severed accurately at the proper point .with its endscut loff'smooth and flushv withithe ends offthe tips sothat I there' are no'vloose threadswor ragged lend s.

the machine without departing from` the spirit or scope of the invention; therefore, without limiting myselfto the exact embod`` in general".the machine producesany improved productV at an in cre'asedrate offpro# duction, and with a minimum of careand l vattentiononthe partofthe operator.. .i

Various modiications may be made' in the structure. and arrangement ofthe parts of .iment herein shown an'd'described, Iclaiin t 1; In a tipping` machine, the combinationy 'f of two sets of dies adapted to operatefona blank to apply adoubledeno'th tip `to the lace, one -set of dies .being 4displaceable lin, relation to the otherset lto shear the double Y, tipin twain, a lever for operating the two sets of dies in unison, and means connect- .ing the leverto said diesto adapt it to ,move one set of dies past the other set to effec the shearingaction therebetween. ,l

2. ina tipping' machine, the combinationof two sets of diesadapted to yoperate on. a blank to applyadoublerlength` tip tothe lace, one set of dies being displaceabl'efin relation to the other setto shear the double tip ,in twain, a two part lever for .operating 7 the two s ets of-dies in unison,` and means for adapting one part of the lever to yield f whereby the other part will move one-set of dies past the other set to effect the shearingk l action therebetween,

' 3. ln la tipping machine, of twosets of dies'adapted to operate'. on a blank to apply' a double-length tip `to they the combination i .100.

lace, oneset of dies being displaceablein f' relation to the other set to shear the double` tip in twain, a inainleverfor operating the`- L dies, and a second auxiliary lever vconnected `tothemain lever andada'pted to yieldin relation thereto to allow one set of dies to.'-

shearing action therebetween.

4. In a tipping machine, the combination ybe carried past the other set lto effect the .A

sin@ Siidabie on ai@ base, s die on the sins* of the first slide, apair of dies carried by4 said 'lastsnamedlslides and means to move the pair of slides `in'unison and to continue the rmovement of one. of them to slidethe first-,namedslide f v 'l 5. In ay tipping machine,V the combination. with a base, of a die iiXedon the base, a

arranged opposite the'xed die,.me`ans yfor f .holding` said slidel in position with' its die in alinementwith thefixed diefapair of slidesadapted -formovement independently slide slidableronfthe base, die carriedby p f `theslide, a: spring` for holdingt'he slide in4 ypositionwith its die in alinement withthe fixed die',` a pair of lslidess-lidable on the base independently of the first slide, a. pair ofdies carried by the last-.named slides, and l a compoundrlever for' sliding the pair ofi 11d with a base, of a die `lined onj the base, a'

ifi/M059 in position to engage the lace to hold it in 'place as @he blank is bent around it, and means on the other die for tilting the lever 10 ont of the Way as the dies .come together.

ln testimony wheieoic l mix my signacure.

SVAN NORDEN. 

